Poly(cyclodextrin-ionic liquid) based ferrofluid: A new class of magnetic colloid for dispersive liquid phase microextraction of polycyclic aromatic hydrocarbons from food samples prior to GC-FID analysis. (1st June 2020)

• Record Type: Journal Article
• Authors: Yih Hui, Boon; Mohamad Zain, Nur Nadhirah; Mohamad, Sharifah; Varanusupakul, Puttaruksa; Osman, Hasnah; Raoov, Muggundha
• Is Part Of: Food chemistry. Volume 314(2020)
• Publication Date: 2020-06-01
• Subjects: Ferrofluid -- Supramolecular solvents -- Polycyclic aromatic hydrocarbons -- Gas chromatography-flame ionization detector -- Box-Behnken design; Acenapthalene (PubChem CID: 9161) -- Fluorene (PubChem CID: 6853) -- Phenanthrene (PubChem CID: 995) -- Fluoranthene (PubChem CID: 9154) -- Pyrene (PubChem CID: 31423) -- Benz[a]anthracene (PubChem CID: 5954) -- Benzo[a]pyrene (PubChem CID: 2336); Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2020.126214
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: New ferrofluid was composed of poly(βCD-IL) magnetic nanoparticles and SUPRAS. The ferrofluid was applied for the extraction of PAHs from food samples. The proposed method was time-saving, efficient, and convenient for microextraction. Abstract: Poly(β-cyclodextrin-ionic liquid) grafted magnetic nanoparticles combined with 1-octanol as supramolecular solvents (SUPRASs) presenting new ferrofluid was developed and successfully applied in the dispersive liquid-phase microextraction of seven representative polycyclic aromatic hydrocarbons. One variable at-a-time (OVAT) analysis and response surface methodology (RSM) were used for efficient optimization of the main variables. The calibration curves were found to be linear in the range of 0.1–150 ng mL −1 with correlation of determinations (R 2 ) ranging from 0.9944 to 0.9986. Detection limits ranged at 0.02–0.07 ng mL −1 for all studied PAHs. The intra and inter-day precision values (RSD %) were in the range of 1.80%–7.56% and 2.97%–8.23%, respectively. The ferrofluid showed a satisfactory reproducibility between 1.72% and 5.90%, and acceptable recovery values at 84%–110% were obtained for the real samples analysis. The optimized method was successfully applied to access the content safety of the PAHs studied in a variety of commercial food and beverages available in Malaysia.